Dweets awesomed by u/ximavus

function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<9;i++)
x.fillRect(400+i*100+S(t)*300,400,50,200) // draw 50x200 rects

} // 122/140

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    u(t) is called 60 times per second.
    t: Elapsed time in seconds.
    S: Shorthand for Math.sin.
    C: Shorthand for Math.cos.
    T: Shorthand for Math.tan.
    R: Function that generates rgba-strings, usage ex.: R(255, 255, 255, 0.5)
    c: A 1920x1080 canvas.
    x: A 2D context for that canvas.

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Current theme challenge: #Food

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rodrigo.siqueira

remix of d/18458 by u/rodrigo.siqueira

function u(t) {

for(X=f=c=>S(S(9*c/d)*t),Y=t/8-1.1,i=2e3;i--;x.fillRect(i,t*60,(1+f(X=i/480-2)*f(Y))*(d/2+Y),3))x.fillStyle=R(C(r=X*X+Y*Y)*125),d=r>1||T(r)

Apr 23 2020 5:58 PM UTC

}// 139/140

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Red Sphere Reflection #raytracing (high resoluton)

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u/Xen

Tf Dude! top dweet right here 😍
u/lionleaf

That's amazing!
u/lionleaf

#glass #sphere
u/stiaje

#witchcraft
u/Ath0r

Impressive, great job!
u/katkip

genius script
u/PoweredByWill

wow. dwitter povray.
u/mole

I am shooketh. This is absolutely incredible.
u/katkip

#slowrender
u/cli

This is great.
u/Nascretis

Actually insane. #witchcraft
u/ximavus

So realistic

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gpolonus

remix of d/17827 by u/gpolonus

function u(t) {

t?0:p=q=0
f=(a,b,c,d)=>x.moveTo(a,b)|x.lineTo(c,d)|x.stroke()
onmousemove=e=>((a,b)=>f(a,b,q,p)|f(2e3-a,b,2e3-q,p)|(q=a,p=b))(e.x*3.4,e.y*3)

Mar 4 2020 6:44 PM UTC

}// 140/140

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Mirror lines #interactive

u/gpolonus

The cursor if off in the y direction. I wanted to change the 3 multiplier to 3.4 but couldn't figure out where to save characters. Any suggestions would be much appreciated!

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gpolonus

function u(t) {

f=(a,y)=>x.fillRect(a,y,9,9)||f
t||c.addEventListener('mousemove',e=>((a,y)=>f(a,y)(2e3-a,1e3-y)(a,1e3-y)(2e3-a,y))(e.x*3.4,e.y*3.4))

Mar 3 2020 7:17 PM UTC

}// 133/140

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Shorter 4 mouse cursors

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tomxor

function u(t) {

for(x=96,i=O='';u='񾈗򔼐򪄊'.charCodeAt(i/2)>>i++%2*5&31;O+=String.fromCharCode(x))x+=u-16;throw O

Sep 22 2019 2:00 AM UTC

}// 93/140

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Limited Range Delta Compression - Fit 200 chars! with extreme limitations :D

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u/tomxor

Each char is encoded as 5 bits (fitting 4 into each 20bit surrogate pair), representing the numeric difference between the previous and current ASCII codepoint. Since 5 bits only provides 32 values this is limited to shifting -16 to +15 codepoints each char, this makes it rather challenging to write code with since you can only reach a max of 1/3 of the useful ASCII codepoints at a time.
u/tomxor

Here's the encoder if you are looking for a very contrived adventure: f=(s,x=96,b=16,o='')=>{for(p=0,i=0;i<s.length;){x+=d=s.charCodeAt(i)-x;p|=d+b<<((i%4^2)*5);++i%4?0:p=o+=String.fromCodePoint(p+0x10000)}return o;}; f('helloooworld')
u/tomxor

... don't try this, seriously, you can't even get a for loop started
u/tomxor

#compressor
u/ximavus

this is actually a very nice idea
u/ximavus

#underrated

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nystrand

function u(t) {

for(r=777,i=2e3;i--;x.fillRect(a+r,b+r,29,19))a=t*i*i*r%2e3-r,b=i-r,g=i/3+S(t)*a/24,x.fillStyle=R(A=S(t+a/g)*S(C(t/2)+t-b/g)*i,A+a/8,A+b,.3)

Sep 9 2019 7:02 PM UTC

}// 140/140

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u/yonatan

Nice one! How does it work?
u/yonatan

Oh I get it, a and b are coords used to generate the pixel color with g as tilt
u/pavel

very nice
u/13thptr

great style
u/aleamb

fucking awesome!!
u/KilledByAPixel

👍
u/magna

wowza
u/iverjo

Wow, very nice!
u/vain

Incredible

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KilledByAPixel

remix of d/13325 by u/KilledByAPixel

function u(t) {

for(i=0;i<2e3;x.fillRect(i?960+i*S(F=260*(t+9)/i+S(i*i)):0,i?500+.2*(2*i*C(F)+2e4/i):0,K=i++?S(i)*9:2e3,K))x.fillStyle=R(99*i,2*i,i,i?1:.4)

Apr 20 2019 7:07 PM UTC

}// 139/140

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#blackhole

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u/DataMeta

Quite cool!
u/katkip

wow
u/aleamb

epic!
u/donbright

#space #astronomy
u/KilledByAPixel

Full explanation on my blog: http://frankforce.com/?p=6378
u/chenliang

cool
u/katkip

top of the year
u/KilledByAPixel

130: for(i=0;i<2e3;x.fillRect(i&&960+i*S(a=260*(t+9)/i+S(i*i)),i&&500+i*C(a)/3+5e3/i,K=i++?S(i)*9:2e3,K))x.fillStyle=R(99*i,2*i,i,i+.2)
u/ximavus

That's a good one

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vinca

function u(t) {

for(c.width|=0,j=20,t*=.3,x.font="4em'";j--;){for(i=6;i>0;i-=6/99)r=99*S(3*i)+40*j,x.fillText("🍄",1e3+r*C(i+j*S(t)),500+r*S(i+j*S(t)))}

Mar 22 2019 1:31 PM UTC

}// 135/140

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marc8

function u(t) {

c.width|=r=300
with(x){lineWidth=9
for(i=0;i<9;i++)fillRect(z=400+i*100+C(t)*r,400,50,200)
arc(z,h=500,10,0,7)
arc(310,h,r,t,t+6)
stroke()}

Mar 16 2019 2:48 PM UTC

}// 139/140

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#default engine

u/katkip

WOW
u/katkip

Genius idea
u/katkip

This deserves an awesome
u/f8f82804

#mechanism

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rsrsrs

remix of d/12699 by u/rsrsrs

function u(t) {

for(c.width=i=512;i-=1/8;x.fillRect(16*(X*2+Y+16),16*(X/2-Y+Z+9),6,9))X=i%8-4,Y=i/64-4,Z=S((X*X+Y*Y)/3+t),x.fillStyle=R(a=(Z+1)*+128,a,a)

Mar 9 2019 10:29 AM UTC

}// 137/140

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better gradient monochrome

u/rep_movsd

#underrated
u/ximavus

awesome

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iverjo

function u(t) {

c.width=1920;
for(i=0;i<1900;i++)x.fillStyle=R(255*S(t*3-i/70)),x.fillRect(i,500+90*S(i*0.02+2*t),1,30)

Jan 30 2019 8:07 PM UTC

}// 103/140

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Quick proof of concept of a wave plot

u/iverjo

#sine
u/ximavus

Nice one!

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